}

	_, err := p.AnswerHeader()
	if err != nil && err != dnsmessage.ErrSectionDone {
		return errCannotUnmarshalDNSMessage
	}

	// libresolv continues to the next server when it receives
	// an invalid referral response. See golang.org/issue/15434.
	if rcode == dnsmessage.RCodeSuccess && !h.Authoritative && !h.RecursionAvailable && err == dnsmessage.ErrSectionDone && !hasAdd {
		return errLameReferral
	}

	// parsed, skipped or finished.
	ErrNotStarted = errors.New("parsing/packing of this type isn't available yet")

	// ErrSectionDone indicated that all records in the section have been
	// parsed or finished.
	ErrSectionDone = errors.New("parsing/packing of this section has completed")

	errBaseLen            = errors.New("insufficient data for base length type")

	}
	p, server, err := r.lookup(ctx, target, dnsmessage.TypeSRV, nil)
	if err != nil {
		return "", nil, err
	}
	var cname dnsmessage.Name
	for {
		h, err := p.AnswerHeader()
		if err == dnsmessage.ErrSectionDone {
			break
		}
		if err != nil {
			return "", nil, &DNSError{
				Err:    "cannot unmarshal DNS message",
				Name:   name,
				Server: server,
			}
		}
		if h.Type != dnsmessage.TypeSRV {

		// TODO: hook
		return 0, err
	}
	q, err := parser.Question()
	hadQ := (err == nil)
	if err == nil && a.h.Question != nil {
		a.h.Question(h, q)
	}
	if err != nil && err != dnsmessage.ErrSectionDone {
		return 0, err
	}

	resh := h
	resh.Response = true
	resh.Authoritative = true
	if hadQ {
		resh.RCode = dnsmessage.RCodeSuccess
	} else {
		resh.RCode = dnsmessage.RCodeNotImplemented